NIRVLab — WordPiece Tokenizer for French XNLI
A WordPiece tokenizer (BERT-style) trained from scratch on the French (fr) subset
of the facebook/xnli dataset.
Training Details
| Parameter | Value |
|---|---|
| Algorithm | WordPiece |
| Vocabulary size | 8,000 |
| Special tokens | <s>, <pad>, </s>, <unk>, <mask> |
| Corpus | facebook/xnli / fr — all splits |
| Corpus size | 800,404 sentences |
| Normalizer | NFD + StripAccents + NFC |
| Pre-tokenizer | Whitespace |
| Min frequency | 2 |
| Continuing subword prefix | ## |
Evaluation Metrics
| Metric | Value |
|---|---|
| Tokens / char | 0.2560 |
| Fertility (tokens / word) | 1.5407 |
| Avg sequence length | 23.52 tokens |
| Vocabulary coverage | 1.0000 |
Usage
from transformers import AutoTokenizer
tokenizer = AutoTokenizer.from_pretrained("NIRVLab/xnli-wordpiece-fr")
tokens = tokenizer("Bonjour le monde!", return_tensors="pt")
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